Large-mode-area leaky optical fibre fabricated by MCVD
Abstract
A large mode area single-mode optical fibre based on leaky mode filtering was prepared by MCVD. The cladding structure discriminates the fundamental mode from the higher order ones. A preliminary version has 25-μm core diameter and 0.11 numerical aperture. A Gaussian-like mode with 22-μm MFD is observed after 3-m propagation, in agreement with modeling.
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